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Finding the Fourth Proportional to 634,171.53, 875,165.22 and 347,690.91

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Solution

The fourth proportional to 634,171.53, 875,165.22 and 347,690.91 is: 479,818.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,171.53 : 875,165.22 = 347,690.91 : x
  2. Step 2: Convert to fraction form
    634,171.53/875,165.22 = 347,690.91/x
  3. Step 3: Cross multiply
    634,171.53x = 875,165.22 × 347,690.91
  4. Step 4: Simplify right side
    634,171.53x = 304,286,991,742.15
  5. Step 5: Solve for x
    x = 304,286,991,742.15/634,171.53
  6. Step 6: Final answer
    x = 479,818.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.